He can accept your service through His energy. That is His omnipotency. That is called omnipotent. You cannot do anything of your personal affairs with your energy, but... You can sometimes do. Suppose if you have got money. Even being present on the spot, by spending money you can get the things done. The money will act for you. Similarly, Krsna being omnipotent, He can take your service through His agency, through His potency. And potency means sakti. Sakti-Saktimator abhedah. Krsna and His potency is not different. So Krsna by His causeless mercy, He has appeared before you in a manner by which you can touch Him, you can handle Him, you can dress Him, you can give Him. This is Krsna's mercy. It is not idol worship. Therefore it is forbidden. Don't think it is idol.
Lecture on Srimad-Bhagavatam 1.15.27, Los Angeles, December 5, 1973