The Test stage is located in the very center of the past dimension of the cycle. At this point you look back in time to soberly assess your growth process so far. Necessarily, testing requires the use of a benchmark that sits outside of your own perceptions, experiences, actions, plans, and understanding. This is why you can really only work through this stage effectively with at least one other person who is prepared to ask you the tough questions. The Test stage is often seen as a waste of time or unspiritual by those who just want to get things done (a red tendency) or want to allow the Holy Spirit to have free reign (a blue tendency). So it is very significant that a reason sighted by one of Jesus' greatest disciples for the need to test all and hold onto the good, is so that we do not put out the Spirit's fire (1 Thessalonians 5:19-21).
(Learn more about testing love with the help of How to Implement The 3 Colors of Love)