What is the real translation of Gita 7.21?

From: Keshav

What is real translation of BG 7.21 ?

yo yo yāḿ yāḿ tanuḿ bhaktaḥ

śraddhayārcitum icchati

tasya tasyācalāḿ śraddhāḿ

tām eva vidadhāmy aham

SP translate 7.21 as

I am in everyone’s heart as the Supersoul. As soon as one desires to worship some demigod, I make his faith steady so that he can devote himself to that particular deity.

But word to word translation gives :

Whoever worships me with devotion in whichever form, based on his faith and understanding, I respond to the devotee through that very form and stabilize the faith of that devotee.