As a meditator, I can attest to seeing colors, having unusual experiences and knowing deep peace when I close my eyes. While all of that is well and good, it is far from the spiritual experience I now consider profound. Instead of looking for my connection with G-d by sitting cross legged in silence or looking up at the clouds, I now seek my connection by facing life conditions as they exist and accepting them as they are.
My truth is often painful. Sometimes my truth is that I am ridiculously envious of another person's life conditions and I think G-d has forgotten me. Sometimes my truth is that I miss taking the edge off of life without drugs and I think excitement eludes me. Sometimes my truth is I don't like the people I am supposed to love and I think I would be happier if I interacted with other people.
To have a spiritual experience is to know that my truth is separate from the Truth. The Truth is that all people, places and conditions of my life are perfectly designed to bring me closer to G-d and lasting peace. When I look at life from the perspective of lack, I will be depressed and angry and am likely to act out in a negative fashion. When I look at my life from the perspective of abundance, I am likely to feel grateful and find satisfaction in all.