This temple is inside Mayavaram or Mayiladuthurai. The Lord is called Sri ParimalaRanga or Sri Sugandha vana Nathan and is in reclining pose.
We are at Chandra or Indu pushkarini of the temple. Chandra or Indu, got his curse removed by bathing in this pond. Therefore this place got the name Indhu + oor = Indhalur. Fragrant trees were abundant in this place and so this is called Sugandha vanam [ fragrant forest]. The Lord is hence called Sri Sugandhavana Nathan or Sri Parimala Ranganathan. We can now start after a bath in this pushkarini and worshiping the Lord. Now sloka 1:
idam tu te guhyatamam
yaj jnatva moksyase ’subhat
"The Supreme Personality of Godhead said: My dear Arjuna, because you are never envious of Me, I shall impart to you this most confidential knowledge and realization, knowing which you shall be relieved of the miseries of material existence."
Sri Krishna tells Arjuna. Anasuyave = [Arjuna!] without jealousy. Sri Krishna addresses Arjuna as one who is not jealousy of Sri Krishna. It means that Gita should be listened without jealousy. Because, one might think that the Lord stole butter, He played with girls and married many; how come He is given this pride and fame? We get bad names for doing all these which Sri Krishna did and so how He could be regarded highly? All such doubts should never crop up in our minds, if we think at least for a moment that He is the Leader for all this Universe and all are His property. How can one regard taking one's own property as stealing? There is no purpose in developing jealousy on Him. Jealousy is nothing but appearance of good quality in a person as a bad one to us and then we are at jealous at that person. It means that person should possess some good qualities. We can not be at jealous at a person devoid of any good quality. Te idam = this, tamam = highest, guhya = secret. Sri Krishna is to tell the most precious of secrets- Bhakti yoga. There are many secrets in life for betterment. But what Sri Krishna is going to tell is superior to all of them. Pravakshyami = I [Sri Krishna] am going to explain in detail [to Arjuna]. Jnanam = [knowledge] of Bhakti yoga, vijnana sahita = procedures to perform Bhakti yoga, yaj jnatva = by knowing which, moksyase = get liberated, asubhat = from all sins and punya [preventing to reach the Lord]. Sri Krishna tells that He was going to explain Bhakti yoga and its procedures, by knowing which all impediments of papa and punya would be removed to reach the Lord. The Lord had chosen Arjuna to tell this as he is without jealousy. Only when there is blind faith, one will never feel jealousy. This may look contrary to common belief that we should be very clear in understanding what is good and bad. Yes, that is correct. By such rational thought we should decide that the Lord Sri Krishna is our ultimate aim. After this decision, we have to have blind faith only. Let us also not forget that we are having this blind faith not on some mean mortal but on the Lord. Why should Bhakti be regarded as secret? Why not publicize and make available to all? Yes, it should be more public. But let us see what is Bhakti. He is the Lord, Master, Propreitor and we are His servant and property. This knowledge is Bhakti. Without this there can not be Bhakti. So, trying to propagate Bhakti yoga to persons without this basic knowledge may result in failure. Secrets can not be made public to everybody. If the listener is not jealous and is regarding the Lord as the Leader, then Bhakti yoga can be told. In this Chapter Sri Krishna is going to tell about Bhakti yoga and the procedures to follow it. Humility is essential for Bhakti. Without that we can not worship the Lord. Ego should be totally absent. Asubhat means all the impediments which prevent us from reaching Him. These are our timeless karma and associated papa/ punya, accumulated over infinite births. Bhakti yoga is to remove these obstacles. In the sloka it is said that by understanding Bhakti yoga these obstacles are cleared. Swami Vedanta Desika in his Tatparya Chandrika, tells that mere understanding will not help, but practice is essential. Unless it is practiced Moksham can not be achieved.