Question about making resolution in Yoga Nidra

I have a question about the Sankalp to be done in the Yog Nidra. Do I need to repeat the Sankalp every time, when I do Yog Nidra or different Sankalps be made in each Yog Nidra session. If I repeat the same Sankalp ,am I disturbing the maturation of the Sankalp? Visit http://www.gurumaa.com for more videos