Solitude is not a bad thing, in fact it is a very necessary thing for a Christian.
The Discipline of Solitude is the practice of our 'waiting for God'. This is an aspect of private prayer and worship, but instead of doing the talking we do the listening. This means we still ourselves to hear what God has to say. This is about our willingness to be examined by God, to hear His voice because we have moved anything that is in the way of Him.
We might tell ourselves we prefer God’s company to that of any other person or thing in the world. Solitude puts that claim to the test.