holylove.org
The above web site contains a road map, as it were, to authentic Union. The Way is prayer, much prayer. Jesus said to pray “unceasingly.”
There is a very great difference, actually, between the “union” that one can obtain following a naturalistic path like yoga, and real Union that one obtains only through Eucharistic Devotion and through prayer. The prayer of the Rosary is most highly recommended, and it is the one prayer that Our Blessed Mother continually requests at every single one of her authentic apparitions. The Rosary can be prayed at any time, you don’t need a priest, the way you need a priest for, for example, Mass. The Rosary will lead you to Eucharistic Devotion, and the Rosary — rosary after rosary after rosary — will bring you to authentic Union.
The “union” that is Samadhi is natural only, not supernatural, and as such, it isn’t even union with God, but rather union with the image of God in your own soul. We are made in God’s image, and there is a spiritual reality to our souls that is accessible to us when we take up certain spiritual practices. Many mistake their experience of the spirituality of their own soul for an experience of God. But God is Supernatural, not merely natural, and naturalistic practices like yoga can only lead you to experience the natural. To experience the supernatural, you have to come to Jesus, and Jesus is Present in the Blessed Sacrament.
Google “Penitential Rosary Crusade,” and begin to participate in that. I can testify that if you do so, you will quickly see results, real results, and you will be led on a way that is Infinite, because it leads to God, who is Infinite.