Backpack 
To dream about seeing or carrying a backpack signals worries about choices and encumbrances.
Backpacking
To dream that you are on a backpacking trip is a symbol of your self-assurance and self-preservation abilities. The dream may represent all of the hardships you have overcome.
Bag
To dream about a bag signifies emotional weight that you are carrying. If the bag is tattered, it means that your troubles are quite heavy.
A dream about a bag loaded with clutter is a symbol of stress and complication. You must find a way to reduce the weight.
Sack
To dream of an empty sack indicates wishful thinking.
Dreaming of a sack that is bulging with the unknown implies a great deal of anticipation over an event in your waking life. A future activity may be causing you to be excited and making it difficult for you to concentrate on the things that need your attention right now. When sacks full of goods appear in a dream, there is a suggestion of nighttime activity and secrets to keep.
Hiking
Hiking is very difficult, as it requires endurance, persistence and perseverance. To dream that you're hiking signifies the progress you have made in your life. It means you are focused on your goal.
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