Bhagavad-Gita: Teachings 7-9

As I read through these teachings, I found interesting concepts that I had probably heard of before but hadnt payed much attention to. For example, the Buddhist believe in an after-life or the simple concept of rebirth. As Krishna explains, when a man dies, whoever he is remembering is where he will later on go.

"Whatever being he remember,
when he abandons the body at death,
he enters, Arjuna,
always existing in that beig"
(Bhagavad-Gita, page 80)

As Krishna proceeds, he explains how he is almighty, ever so powerful, and rules over everything. He developes a sort of monologue in which he expresses how men should try and reach to the gods, through sacrifices for example. I found a connection though, as if "action" itself gratified Krishna, rather than us being "innactive", clearly going nowhere. It is as if he considered himself a universal, completely unbeatable force, even spirit, to whose will we must attach. He states the everything is within him, rather than him being in everything, a concept that had me a little confused to be honest. So if everything's in him, therefore leading me to infer he is the Lord of absolutely everything, how come he refers to the "gods"? Im not so sure about this though, when he refers to sacrifices and actions that may somehow lead to a sort of connection with them, whether he is talking about himself, rather than at a more general level.

In the eight teaching, the concept of "infinite spirit" seemed extremely interesting to me. Refering to what I stated before though, it arose confusion in me now that Krishna is refering to an even MORE powerful spirit which appareantly is in charge of controlling the entire universe itself.

"Eternal and supreme is the infinite spirit;
its inner self is called inherent being;
its creative force, known as actions,
is the source of creatures' existence."
(Bhagavad-Gita page 79)