Jupiter: pretty much like the opposite of Saturn– luck, fortune, expansion, growth, optimism, adventure, travels, religion, philosophy, spirituality (our higher minds as in involving belief and culture), excess, and even wastefulness at times. I picture Jupiter like Santa Claus lol– a jolly ole plump dude that takes belief in that he travels all over the world to deliver gifts. (Simplifying it a lot but that's how I sorta see Jupiter.) But we can take Jupiter for granted and become fat, lazy, unappreciative, or even arrogant.
Saturn: challenges, time, karma (the negative karma we must face) death (skulls/bones), desolation, barrenness, restrictions, fears, insecurities; where we find our tests and, if we overcome them, is where we can find our strengths and achievements. Saturn is similar to Pluto but many differences as well...
Uranus: changes, revolution, revelation, epiphanies, surprises, chaos, disorder, rebellion, craziness, strangeness. Where we may find our areas of instability but also our independence or even genius. its where we must be true to our own unique selves and break away from the norm or break away from our prisons. I have it in my 4th (but close to my 5th) and yes I find it hard to maintain order in my home. I'm kind of sloppy and disorganized in the upkeep of my house and private affairs. I also had my daughter quite suddenly- unplanned pregnancy. I also get sudden strokes of luck in playing games (my 5th is the sign Sagittarius also) and my daughter and my loved ones are often quite suddenly lucky but considered free-spirited and unconventional types.
Neptune: dreams, fantasy, ideals, illusions, sacrifices, losses, sadness, where we can purify something, delusion, deceptions. Where we typically idealize or idolize something which can be beautiful in its awe but also can lead to our own downfalls. (Where we often can't see the reality until it's too late.) it's also drugs, alcohol, addictions, escapism. Also art, poetry, photography, acting, even writing. It's imagination. It's mysteries and can bring major confusions.
Pluto: the bowels of anything... death in order to transform anew, it breaks down and degenerates something in your life. It's anything beginning with 'psych' it's psychosis, psychology, psychoanalytic healing, even psychotic behaviors. It's the taboo of sex and nature. It's endings. It's slow but intense change. It can also be big money or money from big corporations or from corruption or from inheritances. It's also where we can be a major force in our lives. It's where we can be a badass. It's also where we can push other's away because of the sheer amount of intensity it brings. At its worse it can bring terror, obsession, corruption but at its best it can bring magnetism, leadership, and even healing.