When suffering happens in our lives, it comes most often from our fellow human beings, us putting our fingerprints on others. God promises there will be an end to the suffering that we do to each other. The suffering of Christ on the cross is God's way of entering into our suffering, and healing it through His suffering. We can help others who are suffering by entering into it, like God did, by being available to them, sit with them, listen to them, be silent with them, pray with them. That is healing.