While not every sensory activity needs to be messy, it is important to let your children engage in messy play from time to time. Messy play lets kids really use their whole bodies to experience the activity. Being free to make a mess means they don't have to hold back. Messy play boosts language development, fine and gross motor skills, and provides valuable tactile experiences.Having the freedom to get messy also reminds kids that they don't have to be perfect or do everything right. They can make mistakes, try again, and just be themselves.