That's fine if you want to use fasting to facilitate spiritual experience, however two points.

1 - Anything longer than 48 hours should be approached with reasonable caution and precautions.

2 - As far as meditation is concerned anything introduced into the practice that isn't the practice itself is a fabrication and at odds with the practice. That's not to say you shouldn't meditate while fasting, however it is to say you should let go of any expectations combining the two might result in something the practice alone will not. In effect it's introducing ego into a practice attempting to diminish ego's influence.