Sometimes called guided imagery or visualization, with this method of meditation you form mental images of places or situations you find relaxing. You try to use as many senses as possible, such as smells, sights, sounds and textures. You may be led through this process by a guide or teacher. 
It is a process by which one or more participants meditate in response to the guidance provided by a trained practitioner or teacher, either in person or via a written text, sound recording, video, or audiovisual media comprising music or verbal instruction, or a combination of both. 
When starting out, having an expert lead you through the basic steps of your meditation practice is recommended. Whatever skill we are learning in life, having an experienced teacher we can trust and relate to is important. But when it comes to exploring the intricacies and subtleties of the mind, it is not just important but essential.
It’s always a good idea to first understand what we’re trying to achieve through meditation before we embark on what is a journey of a lifetime. In a traditional meditation, meditation students are first taught how to view the contents of the mind and how best to approach the different exercises, to know how to get the best from their practice. Next, they are taught how to practice meditation, to become more proficient. Then comes the integration — learning how to fold the calm and clarity developed during meditation into everyday life.
In a guided meditation, a narrator or teacher explains the dynamics of the mind and how it’s likely to behave during meditation. (This is the approach.) The teacher may also explain meditation techniques. (This is the practice.)
Finally, the teacher may explain how to take these techniques into everyday life. (This is the integration.)
I hope this helps!