Step 1 - Start with a mold, a wick pin, some mold seal (it's the white stuff around the base of the wick pin) and primed wick.
Step 2 - Place a small amount of mold seal around the base of the wick pin (as shown in pic) and insert the pin into the mold. The wick pin makes a nice base for the mold too.
Step 3 - Align your mold and wick pin so that the pin is in the center of the mold and pour in your wax. Repour as needed after candle cools.
Step 4 - After candle is cool, slide the wick pin out of the mold and remove your candle from the mold. Primed wick can easily be inserted through the candle and can be secured at the bottom of the candle with a wick tab or burning instruction label.