Reading the Gita is itself an act of worship. Krishna says so directly. Whoever studies this sacred dialogue between Himself and Arjuna performs a jnana yajna — a sacrifice of knowledge — and through that sacrifice, Krishna is worshipped.
A yajna (sacred offering) does not require a fire pit or ritual implements. When a person sits quietly with the Gita, reads its words, turns them over in the mind, and lets them settle into understanding — that is an offering. The fuel is attention. The fire is inquiry. The offering is the old confusion that burns away as clarity grows.
The phrase 'me matih' — this is My considered view — gives this statement a personal quality. Krishna is not citing a rule. He is sharing His own conviction. In His eyes, sincere study of the Gita is the equal of any ritual worship.