When I first read this passage I thought to myself what am I going to write about? Sure Peter performs a miracle in today's passage, but just pointing that out seems to be just stating the obvious. However, as I thought and meditated about this passage, I found more and more "less obvious" and deeper meanings.
The first "less obvious" item I found was a window being opened. God has a remarkable way of opening windows in front of us and giving us the opportunity to preach his gospel or testify about our faith. I do not know about you but I have seen this happen in my life where someone will come up and ask a question that gives me the opportunity to share an aspect of my faith. This happen in today's reading too. The beggar gives Peter the opportunity to minister to him. One thing I have noticed about these windows of opportunity, they are mostly unanticipated and as such we must be ready to react to them. If someone asked you why you believe the way you believe, are you prepared to quickly and succinctly answer that question? If not, you may want to practice your response.
The next "less obvious" item I noticed concerns miracles. Do you think God has stopped performing miracles? I would submit that the answer is no. As an example let me use the medical field. Doctors can do things today that certainly would have been considered a miracle in Peter's time. God reveals new knowledge to mankind and through that revelation He is still performing miracles. I have heard a doctor say once, a very good doctor, that he bandages the wound but God heals it. There are still many miracles today, we just need to take the time to see them.
The final "less obvious" item I want to mention is the act of Peter helping the man up. The power of God healed the man but Peter still helped him to get up and walk. This same situation is in the world today. The power of God is still there to help make things happen, but it takes action by people (churches) to fully utilize this power. This is why churches must continue to perform activities (outreach, community, mission, etc.) and not just wait for God to do it.
Wishing you the best in your walk with Christ,