note: these are my personal correspondences! you may not agree with them, and thats totally okay. i just wanna share some ideas so you can form your own opinions :) feel free to add to the list!
Why would you involve the elements?
depending on the sigil’s purpose, different elements can aid the intent. for example:
WATER
water would help with sigils relating to emotions, wisdom, purification, love, healing, femininity and others.
WAYS TO CHARGE/ACTIVATE USING WATER
drawing the sigil on paper and letting it soak in the sink
placing the sigil out in the rain
letting the sigil absorb moonlight
drawing the sigil on your body while you swim or bathe
EARTH
earth would help with sigils relating to gardening, money, grounding, divination, fertility, employment, stability, and others.
WAYS TO CHARGE/ACTIVATE USING EARTH
placing the sigil in soil
if it is a sigil to help with plants, place it under the pot or near the plant
let the sigil absorb sunlight
surround with crystals/rocks (selenite would be good!)
any sort of physical way would be good
FIRE
fire would help with sigils relating to sex, courage, exercise, destruction, force, cleansing, protection and many others.
WAYS TO CHARGE/ACTIVATE USING FIRE
draw the sigil on paper and burn it (be careful!)
pass over a candle
pass through incense smoke (or any smoke)
cut up the paper
let it absorb sunlight
have the paper under your pillow or nearby when indulging in acts of passion (yep. you know what i mean.)
draw the sigil on your skin and everytime it moves it’ll charge
AIR
air would help with sigils relating to flying, moving, intelligence, school, karma, and others.