This is how the Spirit fells but when do we feel it?
4 And when ye shall receive these things, I would exhort you that ye would ask God, the Eternal Father, in the name of Christ, if these things are not true; and if ye shall ask with a sincere heart, with real intent, having faith in Christ, he will manifest the truth of it unto you, by the power of the Holy Ghost.
When we keep an eye out for the Spirit we will notice that he is in our lives a lot more then we currently realize. What is the spirit trying to tell us? By the power of the Holy Ghost we may know the TRUTH of all things. That is when we feel the Spirit, when God is telling us something is True.