What do you think this dream meant?

Green is always the colour of peace of mind and calmness and clarity...So I think you were being told that to attain peace and clarity you had to "follow the green tee".Now it's significant that it was "t" and not "cross"..T could stand for truth...I think maybe you were told to follow the truth that would lead to your happiness and peace in spite of the huge cross that represented christianity that was in the way and wasn't giving you that stuff and was screening you from that (i'm going with the cross representing christianity here not religion in general).Of course I may be totally wrong and i have no experience,but there it is for what it's worth...