We have a Church full of doubting Thomases. As Thomas later became a great missionary and martyr, so these doubting Thomases today are called to renew the face of the earth in the power of the Holy Spirit (see Ps 104:30). However, they must first be transformed from having little faith to having strong faith.
We have a Church full of fearful disciples. These Christians acknowledge that Jesus is risen. However, because these disciples are locked in fear (see Jn 20:19), the doubting Thomases of the Church find it difficult to believe the fearful disciples. Fear feeds doubt, and doubt makes us more susceptible to fear, which makes our doubts worse, trapping us in greater fears, etc.
Jesus broke this very vicious cycle by personally challenging Thomas' doubts and leading Him to faith. When Thomas cried out: "My Lord and my God" (Jn 20:28), he prepared the way for the reception of the Holy Spirit by Jesus' disciples at Pentecost. Because the Holy Spirit is not a spirit of fear but of faith (see 2 Tm 1:7), after Pentecost Jesus' disciples were fearless in leading others to faith, fearlessness, and greater faith. Fearlessness feeds faith.
Because you are alive, you are either in a cycle of fear and doubt or a cycle of fearlessness and faith. On this last day of the octave of Easter, come to the risen Jesus, Who will put you in the cycle leading to eternal life.