Signs announce something. Shadows reveal something. Prophecies declare something. Welcome the signs. Study the shadows. invite the prophecies, but only build your faith on the Something, not the signs, shadows or prophecies no matter how exciting and inspiring they appear to be.
There may come a season when you will be without any outward indicators to support your faith. In those times, your faith will be strong because you remained faithful to trust only in the One who is your Something, not in the evidence about Him.