There are many ways to go about a spiritual journey there are those you actively seek out to go upon and there are those spiritual journeys that are thrust upon you. Meditation is a positive place to start especially upon reflection and contemplation. Your journey could happen anywhere from your living room or bedroom or it can take you out into the world.
I prefer to go hiking or backpacking out in the hills or mountains or sometimes I like to lay down in a boat on the lake and let myself float away. You can also help induce an altered state of consciousness or the ssc by using instruments like drums, ratlles, etc. to find a rythmic pathway.
It all really depends on your expectations or rather your lack thereof.